Gaoya dianqi, 2011 该书介绍了日本近两年研发的新产品,如24 kV C-VIS、MS-E型开关柜、VF系列真空断路器和真空灭弧室、采用螺旋电极的电动操作式SF6气体隔离开关、500 kV改进型线路避雷器等。此外 ...
doaj
[Clinical application of robotic lateral lymph node dissection via BABA for thyroid cancer]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za ZhiFang Y, Yue K, Duan Y, Li H, Wang X.
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Gaoya dianqi高压断路器是电力系统中重要的保护和控制设备。高压断路器可以采用弹簧机构来执行分闸动作，断路器分闸时间是指处于合闸位置的断路器，从弹簧机构分闸脱扣器带电时刻到所有各极弧触头分离时刻的时间间隔。弹簧机构分闸脱扣器动作时间在断路器分闸时间中占比50%左右，通过改变弹簧机构分闸锁扣器动作时间是调整断路器分闸时间关键因素。为有效调整断路器分闸时间，文中根据断路器分闸动作的原理，以高压断路器用弹簧机构分闸锁扣系统为研究对象，采用机械动力学仿真计算分析方法，分析分闸锁扣系统对断路器分闸时间的影响 ...
惠勇锋 +10 more
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[Progress in microsurgical repair and reconstruction techniques and development of microsurgery in China]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiGu L.
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[A case of isolated myeloid sarcoma initially presenting as a mediastinal mass]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiYang JH +8 more
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[Tibetan Medicine Classic Formula Srolo Bzhtang Granules Ameliorates Pulmonary Fibrosis via Dual Pathways of Nrf2/HO-1 and PI3K/AKT/mTOR Regulating Oxidative Stress]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanDU J +5 more
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Gaoya dianqi柔性直流配电网的可靠性建立在成熟的中压直流断路器基础之上，然而直流断路器高昂的造价限制了其在配电网中的应用。为了降低直流断路器在配电网中的投资成本，结合耦合负压换流方式，设计了一种改进型多端口混合式直流断路器。首先，对现有直流断路器的拓扑结构进行了分析；然后，提出了改进型多端口混合式直流断路器的拓扑结构，对分断故障时的动作时序进行了设计；最后，基于Pscad/Emtdc搭建了四端环网型柔性直流配电网，仿真分析了改进型多端口混合式直流断路器切除双极短路故障时的暂态特性，得到了内部电压、电流的分布情况 ...
刘书瀚 +5 more
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[Assessment on data processing methods for nontarget identification of per- and polyfluoroalkyl substances using liquid chromatography-high-resolution mass spectrometry]. [PDF]
Se PuZhang BX +5 more
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[Comparison of effectiveness between endoscopic and microscopic anterior cervical discectomy and fusion]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiHuang C +9 more
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[Research progresses in ex vivo liver perfusion technology]. [PDF]
Zhonghua Gan Zang Bing Za ZhiLiu QY, Zhao Q, He XS.
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